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路面维护及预防性养护效益分析 被引量:52
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作者 董瑞琨 孙立军 《公路》 北大核心 2004年第3期121-125,共5页
介绍路面维护、路面维护系统和预防性养护的概念 ,讨论了预防性养护在路面维护中的重要地位。
关键词 路面维护 路面维护系统 预防性养护 效益分析 效益费用比
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浅谈水泥混凝土路面病害的防治与维护及养护 被引量:19
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作者 肖柏轩 蒋立强 《山西建筑》 2007年第9期272-273,共2页
对断(碎)板、接缝料脱落等水泥混凝土路面病害的产生原因进行了分析,并从混凝土配合比设计和施工两方面提出了水泥混凝土路面断(碎)板的防治措施,最后对混凝土路面板的维护和养护进行了阐述,以保证水泥混凝土路面的正常安全使用。
关键词 水泥混凝土 路面病害 维护 养护
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碎石封层技术在国外乡村道路改造中的应用 被引量:3
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作者 周海生 吕晓晞 Ronald E Baker 《石油沥青》 2007年第5期70-71,共2页
碎石封层技术是国外应用广泛而成熟的一项罩面技术,以西班牙马德里城郊的乡村路的改造为例,阐述碎石封层技术的施工及其注意事项。这对于我国乡村路的升级改造以及碎石封层的应用具有一定的借鉴和指导意义。
关键词 碎石封层 道路预防性养护 罩面技术
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Recent development,utilization,treatment and performance of solid wastes additives in asphaltic concrete worldwide:A review 被引量:3
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作者 Tracy Leh Xin Wong Mohd Rosli Mohd Hasan Leo Choe Peng 《Journal of Traffic and Transportation Engineering(English Edition)》 EI CSCD 2022年第5期693-724,共32页
Asphalt modifications either involved commercial or recycled waste materials modifiers help optimise and improve the deficient properties of asphalt mixtures relative to current standards.This manuscript reviews the r... Asphalt modifications either involved commercial or recycled waste materials modifiers help optimise and improve the deficient properties of asphalt mixtures relative to current standards.This manuscript reviews the recycling of waste materials generated from various sources such as household,agricultural and industrial to minimise natural resources exploitation,lower energy demand,and enhance overall pavement performance.The actual development and implementation of recycled asphalt pavement in numerous countries in Asia,North America,South America,Europe and Africa are emphasised,and their influence on the performance of asphalt pavements is reviewed.Modified pavement showed satisfying performance for years as maintenance and restoration are not required.Generally,solid wastes are required to undergo pre-requisite treatments via mechanical,biological stabilization,thermal or chemical methods before the implementation as asphalt modifiers to ease the handling process.Moisture damage issues have been spotted in the implementation of several types of solid wastes and consequently reduced the strength and durability of pavement.Therefore,potential hydrophobic treatment can be adopted to improve the quality of asphalt mixtures by modifying the hydrophilic characteristics that are contributed by the hydroxyl groups on the cellulose nanocrystals(CNCs)or providing a superhydrophobic coating onto the particles.The treatments greatly weakened the moisture sensitivity of modified materials by reducing their water absorption and increasing their water contact angle.The modified mixtures are necessary to have identical or enhanced pavement performance to the conventional mixtures.Besides,future researchers are encouraged to broaden the research field in pavement engineering by considering chemical treatments in improving material properties to achieve cost-saving,efficient waste management,and higher commercial feasibility.Before implementing any virgin materials,waste materials and by-products as alternative substances or m 展开更多
关键词 Sustainable pavement Industrial waste Cleaner environment Resources preservation Hydrophobic treatments Mechanical performances
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路面保护及其效益分析 被引量:1
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作者 杨风英 王端宜 《交通标准化》 2008年第5期179-182,共4页
通过对路面保护、路面保护计划及其相关的养护活动等概念的介绍,并结合美国的一些经验对路面保护的效益进行深入分析,从而有效论证实施路面保护的重要性及必要性,对于路面保护的开展和推广具有积极的意义。
关键词 路面保护 路面保护计划 效益
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Life-cycle cost analysis of optimal timing of pavement preservation 被引量:1
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作者 Zilong WANG Hao WANG 《Frontiers of Structural and Civil Engineering》 SCIE EI CSCD 2017年第1期17-26,共10页
Optimal application of pavement preservation or preventive maintenance is critical for highway agencies to allocate the limited budget for different treatments. This study developed an integrated life-cycle cost analy... Optimal application of pavement preservation or preventive maintenance is critical for highway agencies to allocate the limited budget for different treatments. This study developed an integrated life-cycle cost analysis (LCCA) model to quantify the impact of pavement preservation on agency cost and vehicle operation cost (VOC) and analyzed the optimal timing of preservation treatments. The international roughness index (IRI) data were extracted from the long-term pavement performance (LTPP) program specific pavement studies 3 (SPS-3) to determine the long-term effectiveness of preservation treatments on IRI deterioration. The traffic loading and the initial IRI value significantly affects life extension and the benefit of agency cost caused by pavement preservation. The benefit in VOC is one to two orders greater in magnitude as compared to the benefit in agency cost. The optimal timing calculated based on VOC is always earlier than the optimal timing calculated based on agency cost. There are considerable differences among the optimal timing of three preservation treatments. 展开更多
关键词 pavement preservation life-cycle cost analysis agency cost vehicle operation cost
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泰州大桥钢桥面铺装十年养护总结与评价
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作者 孔燕 张辉 +1 位作者 李娣 付新新 《上海公路》 2023年第4期67-76,I0010,共11页
泰州大桥作为国家级重大工程,是世界首座千米级三塔悬索桥。主跨2×1 080 m,钢桥面铺装采用“下层浇注+上层环氧”的刚柔复合型铺装方案,其结构体系为桥梁技术前沿的突破性创新,系世界首创,具有“三塔两跨悬索桥型、钢箱梁结构超长... 泰州大桥作为国家级重大工程,是世界首座千米级三塔悬索桥。主跨2×1 080 m,钢桥面铺装采用“下层浇注+上层环氧”的刚柔复合型铺装方案,其结构体系为桥梁技术前沿的突破性创新,系世界首创,具有“三塔两跨悬索桥型、钢箱梁结构超长、交通量较大、重型车比例高、桥位区雨量充沛、相对湿度大”等独有的工程特点。泰州大桥超长超柔钢桥面结构也对运营维养提出了新挑战,系大桥建设的“八大技术难点”之一。大桥在钢桥面铺装养护运营阶段做了大量卓有成效的研究与实践工作,取得了丰硕成果,建立了桥面系服役状态感知系统,摸清了铺装性能衰变规律,并定期开展洒水控温和治超,促进日常管养的成效明显。此外,还开展了人工步检及专业化检测工作,实现检测全面覆盖,开发了适用于刚柔复合型铺装长期服役的耐久性保存和提升的关键技术,实现高品质耐久性服役。 展开更多
关键词 泰州大桥 刚柔复合型铺装 服役状态感知系统 检测技术 耐久性保存和提升关键技术
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